try {
            System.out.println("runtime");
            String cmd = "cmd.exe /c start " + "D:\\SLDDataCenter\\Postgresql\\backup.bat" ;        
            Process p = Runtime.getRuntime().exec(cmd);
            BufferedReader br = new BufferedReader( new InputStreamReader(p.getInputStream()));
            System.out.println("waiting for password...");
            while((br.readLine())!=null){
                System.out.println("br: "+br.readLine());
            }
            while (true){
                if(p.waitFor() == 0)break;
             }
            p.destroy();
        } catch (Exception e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }

       //==========================数据库备份代码 开始===========================//
        BufferedWriter mBufWriter = null;
        
        //建立一个BackupDb.bat文件
        FileWriter fileWriter = new FileWriter("BackupDb.bat");
        mBufWriter = new BufferedWriter(fileWriter);

        //转到PostgreSQL安装的根目录
        String batLine1=getText("database.postgresPath1");
        
        //转到PostgreSQL下pg_dump.exe文件的路径
        String batLine2="cd " + getText("database.postgresPath2");
        String batLine4="CLS";
        
        //设置数据库密码，为了跳过后面输入密码的过程
        String batLine3="set PGPASSWORD=" + getText("database.postgresdbPwd");
        
        /* *********************************************************
         * pg_dump：命令执行备份
         * -c：输出在创建数据库创建命令之前先清理（删除）该数据库对象的命令。
         * -d：将数据输出为的INSERT命令（而不是 COPY）。（PostgreSQL8.4上无效，暂时不添加）
         * -h：主机名
         * **********************************************************/
        String batLine501="pg_dump -c -h " + getText("database.postgresdbHost");
        
        //-U 数据库用户名
        String batLine502=" -U " + getText("database.postgresusername");
        
        //-p数据库端口
        String batLine503=" -p " + getText("database.postgresdbPort"); 
        
        //-E导出文件字符编码
        String batLine504=" -E " + getText("database.bakupcode"); 

        //要备份的数据库名称
        String batLine505=" -D " + getText("database.postgresdbName") +" > ";
        batLine505=" " + getText("database.postgresdbName") +" > ";

        //取系统时间
        Date NowTimes = new Date();

        //将时间格式化成yyMMddhhmmss(年月日时分秒)
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddhhmmssms");
        String BackupDbName = StringUtils.getPath(getText("database.bakupPath"))+ sdf.format(NowTimes) + ".backup";
        BackupDbName = getText("database.bakupPath")+ sdf.format(NowTimes) + ".backup";
        mBufWriter.write(batLine1);
        mBufWriter.newLine();
        mBufWriter.write(batLine2);
        mBufWriter.newLine();
        mBufWriter.write(batLine3);
        mBufWriter.newLine();
        mBufWriter.write(batLine4);
        mBufWriter.newLine();
        mBufWriter.write(batLine501);
        mBufWriter.write(batLine502);
        mBufWriter.write(batLine503);
        mBufWriter.write(batLine504);
        mBufWriter.write(batLine505);
        mBufWriter.write(BackupDbName);
        mBufWriter.newLine();
        mBufWriter.flush();
        mBufWriter.close();
        try {
            
            // 执行BackupDb.bat文件进行备份数据库
            Runtime.getRuntime().exec("Bac